I wrote an Android app and used the following Android code to send a character. I want to know which callback of Bluenrg will be called after sending the character?
BluetoothGattService gattService =
...
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 19:59[/i] [:)][:)]The naming convention of Acer notebooks: Travel Mate is positioned for business applications, and generally uses ordin...
For the home LED clock, a low-power sleep mode chip was selected mainly to save power, but the effect of the crystal oscillator frequency on the overall current is unknown, and the parameter standards...
Reprint: Anxinke open source team is dedicated to writing and sharing the initial technical exchange of ESP32-A1S offline voice1. Introduction2. Offline speech framework2.1 Algorithm model WakeNet and...
As shown in the figure below, NMOS and PMOS are used as a protection circuit to prevent reverse connection of the power supply. [1] The circuit diagram of the PMOS tube is easy to understand. For the ...
The STM32 Cortex-M3 controller, like many other ARMs, provides two pins, BOOT0 and BOOT1, for boot selection. BOOT1=x BOOT0=0 Boot from user flash memory, which is the normal working mode. BOOT1=...[Details]
Abstract: Since the electrodes of the electromagnetic flowmeter often come into contact with the measured liquid, we need to maintain the electrodes of the electromagnetic flowmeter regularly. This c...[Details]
In recent years, high-end display technology has been committed to improving the display quality of display devices, making the bright fields of the display brighter and the dark fields darker, achie...[Details]
A brief discussion on building integrated photovoltaic (BIPV) design
1 Introduction
With the gradual depletion of fossil energy and the deterioration of the natural environment, peopl...[Details]
This article mainly explains how to use LED characteristics for design from the perspectives of electronic circuits, thermal analysis, and optics. LED lighting has received widespread attention as ...[Details]
With the development of oscilloscope technology and computer technology, the accuracy requirements for signal detection and analysis are getting higher and higher. Ordinary oscilloscopes are relativ...[Details]
On September 15, Baidu World Conference 2020 opened today. Baidu founder Robin Li and CCTV host Kang Hui talked about smart transportation and future driving experience on the spot. Robin Li predic...[Details]
On April 8, Huawei launched the P40 series of 5G mobile phones in China. Among them, the P40 Pro+ is not only equipped with up to 7 cameras, but also uses Huawei's largest mobile phone CMOS sensor (C...[Details]
"The 77GHz millimeter-wave radar market is in a period of rapid growth, and the demand comes from three aspects: First, with the gradual implementation of domestic policies related to active automobi...[Details]
Apollo has signed an agreement with Hesai Technology to develop a lidar sensor for Baidu's fifth-generation self-driving car, according to a Caixin International report on May 19. According to the re...[Details]
I was shocked to see the news that 550 million people traveled during the "Double Festival" period in China. I expected a lot of people, but I didn't expect so many! It seems that everyone is full of...[Details]
1 Introduction
Insulated Gate Bipolar Tramistor (IGBT) is a composite device of MOSFET and GTR. Therefore, it has the advantages of MOSFET, such as fast working speed, high switching fre...[Details]
Recently, the Tianjin Municipal Bureau of Human Resources and Social Security and the Municipal Finance Bureau issued the "Several Measures to Support Enterprises' Non-local Employees to Stay in Tian...[Details]
1. What is CPU The central processing unit (CPU) is mainly composed of three parts: the arithmetic unit, the controller, and the register. From the literal meaning, the arithmetic unit plays the role...[Details]
On May 23, according to the announcement of the stock transfer system, Xiamen Hengkun New Materials Technology Co., Ltd. (hereinafter referred to as Hengkun Shares) recently submitted an application ...[Details]
Analog electronics
京公网安备 11010802033920号
EEWORLD
